The arm of a starter is held in the "ON" position by means of an eleetromagnet. The torque exerted by the spring is 5 Nm and the effective radius at which the force is exerted is 10 cm. Area of each pole face is 2.5 cm? and each air gap is 0.4 mm. Find the minimum number of ampere-turns (AT) required to keep the arm in the "ON" position.?
The arm of a starter is held in the "ON" position by means of an eleetromagnet. The torque exerted by the spring is 5 Nm and the effective radius at which the force is exerted is 10 cm. Area of each pole face is 2.5 cm? and each air gap is 0.4 mm. Find the minimum number of ampere-turns (AT) required to keep the arm in the "ON" position.?
Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter11: Dynamics Of Rigid Bodies
Section: Chapter Questions
Problem 11.7P
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The arm of a starter is held in the "ON" position by means of an eleetromagnet. The torque exerted by the spring is 5 Nm and the effective radius at which the force is exerted is 10 cm. Area of each pole face is 2.5 cm? and each air gap is 0.4 mm. Find the minimum number of ampere-turns (AT) required to keep the arm in the "ON" position.?
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